| 机翼高超音速热颤振有限元分析 |
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| 引用本文： | 肖艳平,叶献辉.机翼高超音速热颤振有限元分析[J].中国民航飞行学院学报,2011(5):26-28,31. |
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| 作者姓名： | 肖艳平 叶献辉 |
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| 作者单位： | 1. 中国民航飞行学院飞行技术学院,四川广汉,618307
2. 西南交通大学力学与工程学院,四川成都,610031 |
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| 基金项目： | 中国民航飞行学院科学基金项目(Q2007-06) |
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| 摘 要： | 基于热气动弹性的特点，给出考虑温度影响的机翼热颤振有限元分析的一般理论。采用Nastran软件对给定的温度分布热效应下两个典型的高超音速机翼的模态特性和气动弹性稳定性进行有限元分析。计算结果表明，受热结构的模态特性和颤振特性均发生变化。由于温度效应降低弯曲、扭转及弯扭固有频率，还会改变它们之间的相对关系，从而导致颤振临...
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| 关 键 词： | 机翼 颤振 热气动弹性 高超音速 |
Flutter Analysis of Hypersonic Wings with Thermal Effect |
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| Xiao Yanping Ye Xianhui.Flutter Analysis of Hypersonic Wings with Thermal Effect[J].Journal of China Civil Aviation Flying College,2011(5):26-28,31. |
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| Authors: | Xiao Yanping Ye Xianhui |
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| Institution: | Xiao Yanping~1 Ye Xianhui~2 (1 Flight Tech Institute,Civil Aviation Flight University of China Guanghan 618307 Sichuan China 2 Mechanics and Engineering Institute of Southwest Jiaotong University Chengdu 610031 Sichuan China) |
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| Abstract: | Based on the characteristics of aero-thermoelasticity,a hierarchical solution process for thermal flutter analysis is presented.Using Nastran software,the natural dynamic characteristic and aero-thermoelasticity of two typical hypersonic wing structures are analyzed involving thermal effect of the given temperature distribution.The results illustrate that both the natural dynamics and the flutter characteristics of wings change due to aerodynamic heating.The flutter velocity declines sharply because the hig... |
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| Keywords: | Wing Flutter Aero-thermoelasticity Hypersonic |
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